Lenovo ThinkPad X220 Battery (42T4861 / 42T4862 OEM Replacement)

This battery is designed for Lenovo ThinkPad X220 and X220i laptops. It is a removable lithium-ion battery available in standard 6-cell and extended 9-cell versions, providing stable and reliable power for business use, office work, and general computing tasks. The most common part numbers are 42T4861 and 42T4862, which are widely used across X220 series models and compatible FRU variants such as 42T4865 and 0A36282.